A few prominent hedge funds bucked their money-losing peers last month, posting gains in a tough July for the industry.

Citadel Investment Group and Tudor Investment Corp. both made gains last month. The former’s flagship Kensington and Wellington funds added 2.7%, Bloomberg News reports, while the latter’s main fund added 1.6%. Kensington and Wellington are up nearly 10% on the year, while Tudor is down 2.6%.

New York-based Autonomy Capital Research also made money, returning 2.6% in July. The $3.3 billion macro firm is up 11% in 2014.

Renaissance Technologies was not so lucky: Its Institutional Diversified Alpha Fund fell another 2% last month, extending its year-to-date loss to 4.9%.